Katharine McPhee

Jeff Haynes/Reuters

Singer Katharine McPhee waves during warm-ups in the Superdome prior to the NFL Super Bowl XLVII football game between the San Francisco 49ers and Baltimore Ravens in New Orleans, Louisiana, February 3, 2013.

Singer Katharine McPhee waves during warm-ups in the Superdome prior to the NFL Super Bowl XLVII football game between the San Francisco 49ers and Baltimore Ravens in New Orleans, Louisiana, February 3, 2013. (Jeff Haynes/Reuters)

Singer Katharine McPhee waves during warm-ups in the Superdome prior to the NFL Super Bowl XLVII football game between the San Francisco 49ers and Baltimore Ravens in New Orleans, Louisiana, February 3, 2013.